This document provides technical specifications and replacement part numbers for a clutch-brake coupling. The coupling comes in various models with different weights, torque ratings, speeds, and voltages. It also lists the required concentricity and perpendicularity tolerances for mounting. Exploded diagrams show the internal components, including the magnet accessories, armature plates, hub assembly, magnets, bearing mounted rotors, and taper bushings. Replacement part numbers are provided for ordering individual components.

1. I-4
Technical Data and Torque (In. Lb.)
Clutch-Brake Coupling
Static Max. Coil * Rated RPM
Model Wt. Torque Speed Voltage Current
No. Lbs. in. lb. RPM vdc amps 0 300 600 900 1200 1500 1800 2400 3000 3600
305 11.0 684 3600 90 .41 684 624 564 516 468 420 384 324 288 252
* Rated current at 90v. Refer to Section M for torque and heat dissipation curves.
Customer must maintain:
1. Concentricity between mounting fl ange and shaft within .006.
2. Perpendicularity between mounting surface and shaft within .006.
Stationary Field
Bearing Mounted
Pin Drive
Model
305
Bushing 1215
Bore “E” Keyway Part No.
1/2 .500 .125 x .062 326058 - 1
9/16 .562 .125 x .062 326058 - 2
5/8 .625 .187 x .093 326058 - 3
11/16 .687 .187 x .093 326058 - 4
3/4 .750 .187 x .093 326058 - 5
13/16 .812 .187 x .093 326058 - 6
7/8 .875 .187 x .093 326058 - 7
15/16 .937 .250 x .125 326058 - 8
1 1.000 .250 x .125 326058 - 9
1-1/16 1.062 .250 x .125 326058 - 10
1-1/8 1.125 .250 x .125 326058 - 11
1-3/16 1.187 .250 x .125 326058 - 12
1-1/4 1.250 .250 x .125 326058 - 13
Order Parts for Assembly No. FC305166 and FC305167
Bearing Mounted Rotor Field FC305166 FC305167
Armature Armature (Clutch) Magnet (Brake) (1215)
Magnet Plate Hub Bore Inside Outside Taper
Accessory Assembly Assembly 3/4 7/8 1 1-1/8 1-1/4 Mount Mount Bushing
24 Volts 326143 305381 305450 305773-1 305773-2 305773-4 305773-5 305773-6 305343 305353 326058-XX
90 Volts 326143 305381 305450 305774-1 305774-2 305774-4 305774-5 305774-6 305344 305354 326058-XX
To order, specify: 1, Magnet Accessory
2, Armature Plate Assemblies
1, Armature Hub Assembly
1, Magnet (Brake) of required Voltage for either Inside Mount or Outside Mount
1, Bearing Mounted Rotor Field of required Bore size and Voltage
1, Taper Bushing (1215) of required Bore size
For controls, see Section K.For adjustable gap armature plate, hubs and spring drive armatures see Section ?????.
Sold Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com

2. I-5
Clutch-Brake Coupling – Replacement Parts
Replacement Parts
Item Qty. Description Part No. Item Qty. Description Part No.
1 1 Magnet Accessories 326143
2 2 Armature Plate 305381
3 1 Armature Hub Assembly 305450
B 1 Magnet (Brake)
24 Volts, Inside Mount 305343
90 Volts, Inside Mount 305344
24 Volts, Outside Mount 305353
90 Volts, Outside Mount 305354
D 1 Bearing Mounted Rotor Field
24 Volts, 3/4” Bore 305773-1
24 Volts, 7/8” Bore 305773-2
24 Volts, 1” Bore 305773-4
24 Volts, 1-1/8” Bore 305773-5
24 Volts, 1-1/4” Bore 305773-6
90 Volts, 3/4” Bore 305774-1
90 Volts, 7/8” Bore 305774-2
90 Volts, 1” Bore 305774-4
90 Volts, 1-1/8” Bore Sold Serviced 305774-By:
5
90 Volts, 1-1/4” Bore 305774-6
E 1 Taper Bushing (1215) 326058-XX
1
Inside
Mount
Outside
Mount
B
B
2
3
E
2
D
✽
✽ Current design armatures are solid.
✽
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com